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A novel hybrid strategy of drug coated balloon and stent for coronary bifurcation lesions

Mar, 12/27/2022 - 11:00

Scand Cardiovasc J. 2023 Dec;57(1):2161620. doi: 10.1080/14017431.2022.2161620.

ABSTRACT

Background. Provisional side branch (SB) stenting strategy is the default approach for the majority of bifurcation lesions, but outcomes of SB is suboptimal. Though drug coated balloon (DCB) improving SB outcomes attracts an increasing attention, sequence of DCB hasn't yet been determined. We presented a novel hybrid strategy of DCB and stent for bifurcation lesions. Methods. With lesion preparation, DCB was persistently inflated in SB kissing with main branch (MB) stent deployment and balloon post-dilation of the bifurcation core. Proximal optimization technique was performed strictly not exceeding the bifurcation. Procedural and clinical adverse events were evaluated. Canadian Cardiovascular Society (CCS) angina classification was assessed at baseline and clinical follow-up. Results. Fourteen patients undergoing the hybrid technique from August 2020 to July 2021 were enrolled. The technique was successfully performed in all patients without rewiring or SB compromise. Minimal lumen diameter of SB increased from 0.60 ± 0.40 mm to 2.1 ± 0.2 mm while the percent stenosis decreased from 72.4 ± 17.9% to 19.6 ± 4.7%. In addition, intravascular ultrasound indicated comparable stent symmetry index and incomplete stent apposition between proximal and distal segments of stent. No further intervention was performed, and mean fractional flow reserve of SB (n = 12) was 0.88 ± 0.05. No major adverse cardiac events was noted in hospital and 12-month follow up. The mean CCS angina score was reduced by 84% (2.2 vs 0.4, p < .001). Conclusion. The hybrid strategy facilitates treatment of DCB and stent for bifurcation lesions, which appears to be feasible and acceptable in a short-term follow-up.

PMID:36573618 | DOI:10.1080/14017431.2022.2161620

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The prognostic utility of GRACE risk score in predictive adverse cardiovascular outcomes in patients with NSTEMI and multivessel disease

Lun, 12/26/2022 - 11:00

BMC Cardiovasc Disord. 2022 Dec 26;22(1):568. doi: 10.1186/s12872-022-03025-6.

ABSTRACT

BACKGROUND: GRACE risk score models are capable of predicting all-cause mortality of non-ST elevation myocardial infarction (NSTEMI) patients. However, its utility for evaluating major adverse cardiovascular events (MACE) in NSTEMI patients with multivessel disease (MVD) remains unclear.

METHODS AND RESULTS: This study was designed as a retrospective cohort study that recruited patients with NSTEMI and multivessel disease between September 2013 and December 2018 in Daping Hospital, Chongqing, China. The primary outcome was a composite outcome that included all-cause mortality, recurrent angina, non-fatal myocardial infarction, coronary re-vascularization, and non-fatal strokes. Of the 827 patients with NSTEMI, 32 did not complete follow-up and 430 were excluded because of single-vessel disease. The remaining 365 NSTEMI patients with MVD had a median follow-up of 3.0 (IQR 2.6-3.3) years, 78 patients experienced outcomes. The GRACE risk score predicted the MACE (hazard ratio 1.014, 95% CI 1.006-1.021, P < 0.001). The GRACE risk score performed well in predicting all-cause mortality (c-statistic 0.72, 95% CI 0.59-0.85, P = 0.001) in MVD but was less powerful in predicting MACE (c-statistic 0.69, 95% CI 0.62-0.75, P < 0.001). When combining the GRACE risk score with the SYNTAX score, and blood urea nitrogen for predicting all-cause mortality and MACE events, the c-statistic value increased to 0.82 and 0.81 (P < 0.001).

CONCLUSION: In NSTEMI patients with MVD, the GRACE score showed an acceptable predictive value for all-cause mortality, but it was less powerful in predicting MACE. Blood urea nitrogen may be valuable in assessing long-term cardiovascular events in patients with MVD.

PMID:36572851 | PMC:PMC9791745 | DOI:10.1186/s12872-022-03025-6

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Acute myocardial infarction in a young woman with systemic lupus erythematosus

Lun, 12/26/2022 - 11:00

Medicina (B Aires). 2022;82(6):947-950.

ABSTRACT

We repor a case of acute ST elevation myocardial infarction in a 22-year-old patient with SLE, hypertension and nephropathy who underwent successful coronary angioplasty to a middle third of the left anterior descending artery. She evolved without signs of heart failure however, due to the delay in diagnosis, she presented severe deterioration of ventricular function. ST segment elevation myocardial infarction is a very rare event in young premenopausal women, but compared to the general population, patients with lupus have at least a 50% higher risk of suffering it regardless their age. In this population, the most frequent causes are vasculitis, early atherosclerosis and secondary thrombosis to antiphospholipid syndrome. In the context of lupus, conditions such as the presence of nephritis have been described as favoring the appearance of myocardial infarction, constituting subgroups of higher risk. The increased risk of AMI in patients with SLE must be taken into account and must be suspected as a differential diagnosis of precordial pain in young women, even those under 25 years of age, a population categorized as having low CV risk according to traditional scores. This would avoid delays in diagnosis and treatment with adverse consequences such as extensive myocardial necrosis and its impact on ventricular systolic function, as occurred in this patient.

PMID:36571535

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Case report: Oral anticoagulant combined with percutaneous coronary intervention for peripheral embolization of left ventricular thrombus caused by myocardial infarction in a patient with diabetes mellitus

Lun, 12/26/2022 - 11:00

Front Cardiovasc Med. 2022 Dec 8;9:1019945. doi: 10.3389/fcvm.2022.1019945. eCollection 2022.

ABSTRACT

BACKGROUND: Left ventricular thrombus (LVT) is a well-recognized complication of myocardial infarction (MI) in patients with diabetes. An embolic complication caused by LVT is a key clinical problem and is associated with worsened long-term survival.

CASE PRESENTATION: A 45-year-old man with persistent left abdominal pain for 1 week and left leg fatigue was admitted to the emergency department. The cause of abdominal pain was embolism of the renal artery, the splenic artery, and the superior mesenteric artery caused by cardiogenic thrombosis, which further led to splenic infarction and renal infarction. It was unclear when MI occurred because the patient had no typical critical chest pain, which may have been related to diabetic complications, such as diabetic peripheral neuropathy. Diabetes plays a pivotal role in MI and LVT formation. Because coronary angiography suggested triple vessel disease, percutaneous transluminal coronary angioplasty (PTCA) was conducted, and two drug-eluting stents were placed in the left anterior descending coronary artery (LAD). Due to a lack of randomized clinical control trials, the therapy of LVT and associated embolization has been actively debated. According to the present guidelines, this patient was treated with low-molecular-weight heparin and warfarin (oral anticoagulants) for 3 months in addition to aspirin (100 mg/day) and clopidogrel (75 mg/day) for 1 year. No serious bleeding complications were noted, and a follow-up examination showed no thrombus in the left ventricle or further peripheral thrombotic events.

CONCLUSION: Peripheral embolization of LVT caused by MI leading to multiple organ embolization remains a rare occurrence. Diabetes plays a pivotal role in MI and LVT formation. Successful revascularization of the infarct-related coronary artery and anticoagulation therapy is important to minimize myocardial damage and prevent LVT. The present case will help clinicians recognize and manage LVT in patients with diabetes and related peripheral arterial thrombotic events with anticoagulation.

PMID:36568554 | PMC:PMC9775277 | DOI:10.3389/fcvm.2022.1019945

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Surgical treatment of chronic thromboembolic pulmonary hypertension in combination with a left anterior descending artery myocardial bridge: A case report

Lun, 12/26/2022 - 11:00

Front Cardiovasc Med. 2022 Dec 9;9:1061665. doi: 10.3389/fcvm.2022.1061665. eCollection 2022.

ABSTRACT

Pulmonary thromboendarterectomy is a potentially curative option for most patients with chronic thromboembolic pulmonary hypertension (CTEPH). However, a special group of patients with CTEPH requires simultaneous cardiac procedures. We report a rare case of successful surgical treatment of a CTEPH patient with a left anterior descending artery myocardial bridge. Despite the complexity of performing pulmonary thromboendarterectomy (PTE), the issue concerning the method of revascularization of the artery in the case of the left anterior descending artery myocardial bridge is controversial. PTE and supracoronary myotomy were performed. In our case, the optimal surgery method for the left anterior descending artery myocardial bridge was chosen intraoperatively based on the depth and length of the myocardial bridge. The patient's significant functional improvement after surgery and hemodynamic normalization were confirmed at the follow-up assessment. This case demonstrates rare but potentially dangerous pathologies that can be treated with minimal adverse effects.

PMID:36568548 | PMC:PMC9780367 | DOI:10.3389/fcvm.2022.1061665

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Inter-hospital transfer in patients with acute myocardial infarction in China: Findings from the improving care for cardiovascular disease in China-acute coronary syndrome project

Lun, 12/26/2022 - 11:00

Front Cardiovasc Med. 2022 Dec 8;9:1064690. doi: 10.3389/fcvm.2022.1064690. eCollection 2022.

ABSTRACT

BACKGROUND: Little is known about the current scenario of inter-hospital transfer for patients with acute myocardial infarction (AMI) in China.

METHODS: From November 2014 to December 2019, 94,623 AMI patients were enrolled from 241 hospitals in 30 provinces in China. We analyzed the pattern of inter-hospital transfer, and compared in-hospital treatments and outcomes between transferred patients and directly admitted patients.

RESULTS: Of these patients, 40,970 (43.3%) were transferred from hospitals that did not provide percutaneous coronary intervention (PCI). The proportion of patients who were transferred from non-PCI hospital was 46.3% and 11.9% (P < 0.001) in tertiary hospitals and secondary hospitals, respectively; 56.2% and 37.3% (P < 0.001) in hospitals locating in low-economic regions and affluent areas, respectively. Compared with directly admitted patients, transferred patients had lower rates of reperfusion for STEMI (57.8% vs. 65.2%, P < 0.001) and timely PCI for NSTEMI (34.7%vs. 41.1%, P < 0.001). The delay for STEMI patients were long, with 6.5h vs. 4.5h from symptom onset to PCI for transferred and directly admitted patients, respectively. The median time-point was 9 days for in-hospital outcomes. Compared with direct admission, the hazard ratios and 95% confidence intervals associated with inter-hospital transfer were 0.87 (0.75-1.01) and 0.87 (0.73-1.03) for major adverse cardiovascular events and total mortality, respectively, in inverse probability of treatment weighting models in patients with STEMI, and 1.02 (0.71-1.48) and 0.98 (0.70-1.35), respectively, in patients with NSTEMI.

CONCLUSION: More than 40% of the hospitalized AMI patients were transferred from non-PCI-capable hospitals in China. Further strategies are needed to enhance the capability of revascularization and reduce the inequality in management of AMI.

PMID:36568538 | PMC:PMC9773877 | DOI:10.3389/fcvm.2022.1064690

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Hyperkalemia mimicking de Winter T waves: A case report

Lun, 12/26/2022 - 11:00

Clin Case Rep. 2022 Dec 21;10(12):e6783. doi: 10.1002/ccr3.6783. eCollection 2022 Dec.

ABSTRACT

"De Winter" electrocardiogram pattern is considered an equivalent risk to ST-elevation myocardial infarction and usually indicates occlusion of the left anterior descending artery, which needs emergent revascularization treatment. However, some conditions can mimic "de Winter" electrocardiogram pattern and may cause misdiagnosis. Here, we reported a case of hyperkalemia presented with "de Winter-like" electrocardiogram pattern. This study aimed to increase physicians' awareness about the impact of electrolyte disorder on electrocardiographic changes.

PMID:36567688 | PMC:PMC9771788 | DOI:10.1002/ccr3.6783

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Sex-specific associations of myocardial perfusion imaging with outcomes in patients with suspected chronic coronary syndrome

Dom, 12/25/2022 - 11:00

Hellenic J Cardiol. 2022 Dec 22:S1109-9666(22)00182-8. doi: 10.1016/j.hjc.2022.12.008. Online ahead of print.

ABSTRACT

BACKGROUND: Myocardial perfusion scintigraphy (MPS) is an established diagnostic technique for inducible ischemia in patients with suspected chronic coronary syndrome (CCS). Some MPS findings, most notably an ischemia extent>10% of the left ventricle (LV), hold prognostic significance and support maximization of anti-ischemic treatment. We aimed to assess sex-specific associations of MPS findings with cardiovascular (CV) events in a population at high risk of CCS.

METHODS: In a prospective cohort study, 1,229 consecutive patients (age 70±9.5 years, 73.5% males) without known CCS were referred to stress-rest MPS. All patients were followed for a median of 4.6 years for CV events.

RESULTS: Men and women had comparable risk profile and incidence rate of CV events (6.6% vs 4.6% respectively, P=0.186). A summed stress score (SSS) >7 was associated with the primary endpoint including CV death and/or non-fatal myocardial infarction (MI) (adjusted hazard ratio [HR], 3.13; 95% confidence interval [CI], 1.79-5.46; P=0.001), all-cause mortality (HR, 3.01; 95% CI, 1.31-6.93; P=0.01) and incidence of late revascularization (HR, 1.84; 95% CI, 1.22-2.78; P=0.004) in men but not women. Summed difference score (SDS) >6 was related to higher rate of the primary endpoint only in men (adjusted HR, 1.97; 95% CI, 1.18-3.30; P=0.009).

CONCLUSIONS: Among patients undergoing a diagnostic workup for suspected CCS, stress perfusion and reversible ischemia abnormalities may independently predict worse survival and more CV events in men. However, the obtained results indicated the need of sex-specific cut-offs to refine risk stratification and assist in clinical decisions on anti-ischemic therapy beyond coronary artery anatomy.

PMID:36566838 | DOI:10.1016/j.hjc.2022.12.008

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Timi Risk Index, A Simple Tool In Emergency Percutaneous Revascularization For The Prediction Of Contrast Induced Nephropathy

Dom, 12/25/2022 - 11:00

J Ayub Med Coll Abbottabad. 2022 Oct-Dec;34(4):771-777. doi: 10.55519/JAMC-04-10733.

ABSTRACT

BACKGROUND: Contrast induced nephropathy (CIN) is a common complication seen after primary percutaneous coronary intervention (PCI) which can contribute to increased morbidity and mortality in patients of acute ST elevation myocardial infarction (STEMI). Aim of this study was to validate the TIMI Risk Index (TRI) for the risk stratification of CIN in patients undergone primary PCI.

METHODS: Consecutive patients of STEMI undergone primary PCI at a tertiary care cardiac center were included for this study. Patients in Killip class IV at presentation, patients with history of any PCI and chronic kidney diseases were excluded from this study. TRI was calculated using the formula " " and post-procedure serum creatinine level increase of either 25% or 0.5 mg/dL was taken as CIN.

RESULTS: A total of 507 patients were included in this study out of which 82.2% were males and 17.8% were females. In total 8.7% (44) patients developed CIN. In the receiver operating characteristic (ROC) curve analysis, area under the curve (AUC) for TRI was found to be 0.717, [0.649-0.758] for the prediction of CIN. Sensitive, specificity, positive predictive value and negative predictive value of TRI >22.8 to predict the development of CIN were 59.09%, 76.69%, 19.55% and 95.19% respectively.

CONCLUSIONS: TIMI risk index is and easy to calculate and readily accessible score which has good predictive value to evaluate the risk of CIN in primary PCI setting.

PMID:36566397 | DOI:10.55519/JAMC-04-10733

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Association of LDL to HDL ratio with new-onset atrial fibrillation after on-pump coronary artery bypass graft surgery

Vie, 12/23/2022 - 11:00

BMC Cardiovasc Disord. 2022 Dec 23;22(1):564. doi: 10.1186/s12872-022-03016-7.

ABSTRACT

OBJECTIVE: This study aims to analyze the association between preoperative LDL/HDL ratio and new-onset atrial fibrillation (AF) after on-pump coronary artery bypass grafting (on-pump CABG), evaluate the clinic value of preoperative LDL/HDL ratio to identify postoperative rhythm.

METHODS: A retrospective study of consecutive patients (n = 2052) who underwent on-pump CABG at TEDA International Cardiovascular Hospital (Tianjin, China), from June 1, 2020, to December 30, 2021, was conducted. The association between preoperative LDL/HDL and new-onset POAF was analyzed by Lowess curve and univariate logistic regression. The receiver operating characteristic curve (ROC) and area under the curve (AUC) were used to evaluate the identification capacity of preoperative LDL/HDL level for new-onset POAF.

RESULTS: In studied populations, the incidence of new-onset POAF was about 29.24%. The lowess curve showed that the association between preoperative LDL/HDL ratio and POAF after on-pump CABG was similar to a linear relationship. With the increasement of preoperative LDL/HDL ratio, the incidence of POAF increased simultaneously. ROC analysis showed that preoperative LDL/HDL ratio could identify postoperative arrhythmia after on-pump CABG (AUC = 0.569,95% CI = 0.529-0.608, P = 0.006) among female patients, the best preoperative LDL/HDL ratio cutoff of 2.11, which was considered a predictive factor of incident POAF, showed a sensitivity of 83.60% (95% CI = 0.775-0.886) and a specificity of 30.02% (95% CI = 0.257-0.346).

CONCLUSION: Preoperative LDL/HDL ratio is associated with new-onset POAF, but there is a difference in different sex. Preoperative LDL/HDL level can help to identify postoperative rhythm in females.

PMID:36564701 | PMC:PMC9783402 | DOI:10.1186/s12872-022-03016-7

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Physiologic Risk Factors Increase Risk of Myocardial Infarction with TransCarotid Artery Revascularization in Prospective Trials

Vie, 12/23/2022 - 11:00

J Vasc Surg. 2022 Dec 20:S0741-5214(22)02634-9. doi: 10.1016/j.jvs.2022.12.013. Online ahead of print.

ABSTRACT

Objective Patients may be considered at high risk for CEA due to either anatomical or physiologic factors and are often treated with TCAR. Patients with physiologic criteria are deemed to have higher overall surgical risk due to more significant comorbidities. Our aim is to study the incidence of stroke, myocardial infarction (MI), death, and combined endpoints in patients who underwent TCAR comparing ANAT vs. PHYS risk factors. Methods An analysis of the prospectively collected data from the ROADSTER (pivotal), ROADSTER2 (FDA indicated post-market), and ROADSTER Extended Access TCAR trials was performed. All patients (n=851) were considered to be at high risk for CEA and were included and stratified based on high risk ANAT criteria (contralateral occlusion, tandem stenosis, high cervical artery stenosis, restenosis after previous endarterectomy, bilateral carotid stent, hostile neck with previous neck irradiation, neck dissection, or cervical spine immobility) or high-risk PHYS criteria (age > 75 years, multi-vessel coronary artery disease, history of angina, congestive heart failure NYHA class III/IV, left ventricular ejection fraction < 30%, recent MI, severe chronic obstructive pulmonary disease (COPD), permanent contralateral cranial nerve injury, or chronic renal insufficiency). For trial inclusion, asymptomatic patients had > 80% carotid stenosis and symptomatic patients had > 50% stenosis. Primary outcome measures were stroke, death, and MI at 30 days. Data was statistically analyzed with the χ2 test as appropriate. Results There were 851 high surgical risk patients categorized into ANAT only risk factors (n = 372) or having at least one PHYS risk factor (n = 479). The ANAT subset had 74.5% asymptomatic patients, while the PHYS subset had 76.6%. General anesthesia was employed similarly in both groups (67.7% ANAT vs. 68.1% PHYS). MI occurred in 8 PHYS (1.7%) patients all of whom were asymptomatic and in no ANAT patients (p = .01). Combined stroke, death, and MI rate was 2.1% in the ANAT cohort, compared to 4.2% in the PHYS cohort (p = .10). Stratification of each group into asymptomatic and symptomatic patients did not yield any further differences. Conclusion Patients who underwent TCAR in this prospective, neurologically adjudicated trial based on high-risk PHYS factors had higher rates of MI compared to patients who qualified with ANAT criteria only. These patients experienced comparable rates of combined stroke/death/MI rates. ANAT patients represent a healthier and younger subset of patients, with notably low overall event rates.

PMID:36563712 | DOI:10.1016/j.jvs.2022.12.013

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Coronary Artery Calcium Scoring for Risk Assessment in Patients With Severe Hypercholesterolemia

Vie, 12/23/2022 - 11:00

Am J Cardiol. 2022 Dec 21;190:48-53. doi: 10.1016/j.amjcard.2022.10.060. Online ahead of print.

ABSTRACT

The American College of Cardiology and the American Heart Association guidelines recommend treatment of patients with severe hypercholesterolemia (low-density lipoprotein cholesterol [LDL-C] ≥190 mg/100 ml) with a high-intensity statin. However, atherosclerotic cardiovascular disease (ASCVD) risk, even among those with severe hypercholesterolemia, is heterogeneous, and coronary artery calcium (CAC) scoring may be used to clarify risk. We sought to evaluate CAC in patients with severe hypercholesterolemia and measure its impact on real-world statin prescriptions. We identified patients with at least 1 LDL-C ≥190 mg100 ml who had a CAC scoring in the Community Benefit of No-Charge Calcium Score Screening Program (CLARIFY) study (NCT04075162) between 2014 and 2020. We explored the CAC distribution, factors associated with CAC >0, and ASCVD risk (myocardial infarction, stroke, revascularization, death). A total of 1,904 patients (1.257 women, aged 57.8 ± 9.3 years) with severe hypercholesterolemia were included. LDL-C ranged from 190 to 524 mg100 ml (mean 215.5 ± 27 mg100 ml). A total of 864 patients (45.4%) had CAC = 0 and 1,561 (82%) had CAC <100. In patients with LDL-C ≥250 mg100 ml, 67 (36.6%) had CAC = 0. Age, male gender, smoking, diabetes, systolic blood pressure, and obesity (ps ≤0.001) were associated with CAC >0. In patients with LDL-C ≥190 mg100 ml, CAC was associated with a higher risk for ASCVD events (CAC ≥100 vs CAC <100, hazard ratio 3.57 [1.81 to 7.04], p <0.001). A higher CAC category was associated with increased statin use after CAC scoring (p <0.001). In patients with severe hypercholesterolemia, 45% had CAC = 0, which was associated with a significantly lower ASCVD risk. CAC was associated with statin prescription and cholesterol lowering. In conclusion, CAC scoring may be used to clarify ASCVD risk in this heterogeneous population with severe hypercholesterolemia.

PMID:36563458 | DOI:10.1016/j.amjcard.2022.10.060

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Drug-coated balloon-only strategy for percutaneous coronary intervention of de novo left main coronary artery disease: the importance of proper lesion preparation

Vie, 12/23/2022 - 11:00

Front Med. 2022 Dec 23. doi: 10.1007/s11684-022-0950-1. Online ahead of print.

ABSTRACT

This retrospective single-center registry study included all consecutive patients who underwent percutaneous coronary intervention (PCI) for a de novo left main coronary artery lesion using drug coated-balloon (DCB)-only strategy between August 2011 and December 2018. To best of our knowledge, no previous studies of DCB-only strategy of treating de novo left main coronary artery disease, exist. The primary endpoint was major adverse cardiovascular events (MACEs) including cardiac death, non-fatal myocardial infarction, and target lesion revascularization (TLR). The cohort was divided into two groups depending on weather the lesion preparation was done according to the international consensus group guidelines. Sixty-six patients (mean age 75±8.6, 72% male), 52% of whom had acute coronary syndrome, underwent left main PCI with the DCB-only strategy. No procedural mortality and no acute closures of the treated left main occurred. At 12 months, MACE and TLR occurred in 24% and 6% of the whole cohort, respectively. If the lesion preparation was done according to the guidelines, the MACE and TLR rates were 21.2% and 1.9%. Left main PCI with the DCB only-strategy is safe leading to acceptable MACE and low TLR rates at one year, if the lesion preparation is done according to the guidelines.

PMID:36562952 | DOI:10.1007/s11684-022-0950-1

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Prediction of cardiovascular events using myocardial strain ratio derived from <sup>13</sup>N-ammonia positron emission tomography

Vie, 12/23/2022 - 11:00

Eur Radiol. 2022 Dec 23. doi: 10.1007/s00330-022-09359-1. Online ahead of print.

ABSTRACT

OBJECTIVES: Myocardial flow reserve (MFR), derived from ammonia N-13 positron emission tomography (NH3-PET), can predict the prognosis of patients with various heart diseases. We aimed to investigate whether myocardial strain ratio (MSR) was useful in predicting MACE and allowed for further risk stratification of cardiovascular events in patients with ischemic heart disease (IHD) in addition to MFR.

METHODS: Ninety-five patients underwent NH3-PET because of IHD. MFR was determined as the ratio of hyperemic to resting myocardial blood flow (MBF). MSR was defined as the ratio of strains at stress and rest. The endpoint was major adverse cardiac events (MACE), including all-cause death, acute coronary syndrome, heart failure hospitalization, and revascularization. The ability to predict MACE was assessed using receiver operating characteristic (ROC) analysis, and the predictability of ME was analyzed using Kaplan-Meier analysis. The Cox proportional hazards regression model was used to calculate the hazard ratio (HR) with 95% confidence interval (CI).

RESULTS: The ROC curve analysis demonstrated a cutoff of 0.93 for MACE with MSR (sensitivity and specificity of 77% and 71%, respectively). Patients with MSR < 0.93 displayed a significantly higher MACE rate than those with MSR ≥ 0.93 (p = 0.0036). The Cox proportional hazards regression analysis indicated that MSR was an independent marker that could predict MACE in imaging and clinical parameters (HR, 7.32; 95% CI: 1.59-33.7, p = 0.011).

CONCLUSIONS: MSR was an independent predictor of MACE and was useful for further risk stratification in IHD. MSR has the potential for a new indicator of revascularization in patients with IHD.

KEY POINTS: • We hypothesized that combining myocardial flow reserve (MFR) with the myocardial strain ratio (MSR) obtained by applying the feature-tracking technique to ammonia N-13 PET would make it predictive of major adverse cardiac events (MACE) compared to MFR alone. • MSR was an independent predictor of MACE, allowing for further risk stratification in addition to MFR in patients with ischemic heart disease. • MSR is a potential new indicator of revascularization.

PMID:36562782 | DOI:10.1007/s00330-022-09359-1

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Research progress on effects of traditional Chinese medicine on myocardial ischemia-reperfusion injury: A review

Vie, 12/23/2022 - 11:00

Front Pharmacol. 2022 Dec 6;13:1055248. doi: 10.3389/fphar.2022.1055248. eCollection 2022.

ABSTRACT

Ischemic heart disease (IHD) is a high-risk disease in the middle-aged and elderly population. The ischemic heart may be further damaged after reperfusion therapy with percutaneous coronary intervention (PCI) and other methods, namely, myocardial ischemia-reperfusion injury (MIRI), which further affects revascularization and hinders patient rehabilitation. Therefore, the investigation of new therapies against MIRI has drawn great global attention. Within the long history of the prevention and treatment of MIRI, traditional Chinese medicine (TCM) has increasingly been recognized by the scientific community for its multi-component and multi-target effects. These multi-target effects provide a conspicuous advantage to the anti-MIRI of TCM to overcome the shortcomings of single-component drugs, thereby pointing toward a novel avenue for the treatment of MIRI. However, very few reviews have summarized the currently available anti-MIRI of TCM. Therefore, a systematic data mining of TCM for protecting against MIRI will certainly accelerate the processes of drug discovery and help to identify safe candidates with synergistic formulations. The present review aims to describe TCM-based research in MIRI treatment through electronic retrieval of articles, patents, and ethnopharmacology documents. This review reported the progress of research on the active ingredients, efficacy, and underlying mechanism of anti-MIRI in TCM and TCM formulas, provided scientific support to the clinical use of TCM in the treatment of MIRI, and revealed the corresponding clinical significance and development prospects of TCM in treating MIRI.

PMID:36561346 | PMC:PMC9763941 | DOI:10.3389/fphar.2022.1055248

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Outcomes of Emergent Isolated Coronary Bypass Grafting in Heart Failure Patients

Vie, 12/23/2022 - 11:00

Life (Basel). 2022 Dec 16;12(12):2124. doi: 10.3390/life12122124.

ABSTRACT

Patients with previously diagnosed HF are at greater risk for subsequent morbidity and mortality when hospitalized for an Acute Myocardial Infarction (AMI). The purpose of our study was to describe the time trend of the incidence of emergent CABG in patients with and without HF, the clinical characteristics, outcomes, and the risk factors for mortality of surgical revascularization in the short and medium term. This was a single-center retrospective observational study of patients who underwent isolated emergency CABG from January 2009 to January 2020. A propensity-score matching analysis yielded two comparable groups (n = 430) of patients without (n = 215) and with (n = 215) heart failure. In-hospital mortality did not differ in the two groups (2.8%; p &gt; 0.9); the patients with heart failure presented more frequently with cardiogenic shock, and there was an association with mortality and mechanical circulatory support (OR 16.7-95% CI 3.31-140; p = 0.002) and postoperative acute renal failure (OR 15.9-95% CI 0.66-203; p = 0.036). In the early- and mid-term, heart failure and NSTEMI were associated with mortality (HR 3.47-95% CI 1.15-10.5; p = 0.028), along with age (HR 1.28-95% CI 1.21-1.36; p &lt; 0.001). Surgical revascularization offers an excellent solution for patients with acute coronary syndrome, leading to a good immediate prognosis even in those with chronic heart failure.

PMID:36556489 | PMC:PMC9783056 | DOI:10.3390/life12122124

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Cardiac Troponins for the Clinical Management of Patients with Claudication and without Cardiac Symptoms

Vie, 12/23/2022 - 11:00

J Clin Med. 2022 Dec 8;11(24):7287. doi: 10.3390/jcm11247287.

ABSTRACT

Many patients with peripheral arterial disease (PAD) exhibit undiagnosed obstructive coronary artery disease. We aim to identify the patients with lifestyle limiting claudication due to PAD and without cardiac symptoms, requiring coronary revascularization based on high-sensitive troponin T (hsTnT) values. We assessed hsTnT in consecutive patients referred for elective endovascular treatment due to claudication [Rutherford categories (RC) 2 & 3] between January 2018 and December 2021. Diagnostic work-up by non-invasive imaging and, if required, cardiac catheterization was performed according to clinical data, ECG findings and baseline hsTnT. The occurrence of cardiac death, myocardial infarction or urgent revascularization during follow-up was the primary endpoint. Of 346 patients, 14 (4.0%) exhibited elevated hsTnT ≥ 14 ng/L, including 7 (2.0%) with acute myocardial injury by serial hsTnT sampling. Coronary revascularization by percutaneous coronary intervention was necessary in 6 of 332 (1.5%) patients with normal versus nine of 14 (64.3%) patients with elevated hsTnT (p &lt; 0.001). During 2.4 ± 1.4 years of follow-up, 20 of 286 (7.0%) patients with normal versus four of 13 (30.8%) with elevated hsTnT at baseline reached the composite primary endpoint (p = 0.03 by log-rank test). In conclusion, elevated troponins in cardiac asymptomatic patients with claudication modify subsequent cardiac management and may increase the need for closer surveillance and more aggressive conservative management in polyvascular disease.

PMID:36555902 | PMC:PMC9785062 | DOI:10.3390/jcm11247287

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Dexmedetomidine Increases MMP-12 and MBP Concentrations after Coronary Artery Bypass Graft Surgery with Extracorporeal Circulation Anaesthesia without Impacting Cognitive Function: A Randomised Control Trial

Vie, 12/23/2022 - 11:00

Int J Environ Res Public Health. 2022 Dec 8;19(24):16512. doi: 10.3390/ijerph192416512.

ABSTRACT

Postoperative neurological deficits remain a concern for patients undergoing cardiac surgeries. Even minor injuries can lead to neurocognitive decline (i.e., postoperative cognitive dysfunction). Dexmedetomidine may be beneficial given its reported neuroprotective effect. We aimed to investigate the effects of dexmedetomidine on brain injury during cardiac surgery anaesthesia. This prospective observational study analysed data for 46 patients who underwent coronary artery bypass graft surgery with extracorporeal circulation between August 2018 and March 2019. The patients were divided into two groups: control (CON) with typical anaesthesia and dexmedetomidine (DEX) with dexmedetomidine infusion. Concentrations of the biomarkers matrix metalloproteinase-12 (MMP-12) and myelin basic protein (MBP) were measured preoperatively and at 24 and 72 h postoperatively. Cognitive evaluations were performed preoperatively, at discharge, and 3 months after discharge using Addenbrooke's Cognitive Examination version III (ACE-III). The primary endpoint was the ACE-III score at discharge. Increased MMP-12 and MBP concentrations were observed in the DEX group 24 and 72 h postoperatively. No significant differences in ACE-III scores were observed between the groups at discharge; however, the values were increased when compared with initial values after 3 months (p = 0.000). The current results indicate that the administration of dexmedetomidine as an adjuvant to anaesthesia can increase MMP-12 and MBP levels without effects on neurocognitive outcomes at discharge and 3 months postoperatively.

PMID:36554397 | PMC:PMC9778911 | DOI:10.3390/ijerph192416512

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Efficacy and Safety of TiNO-Coated Stents versus Drug-Eluting Stents in Acute Coronary Syndrome: Systematic Literature Review and Meta-Analysis

Vie, 12/23/2022 - 11:00

Biomedicines. 2022 Dec 7;10(12):3159. doi: 10.3390/biomedicines10123159.

ABSTRACT

(1) Background: Practice guidelines define drug-eluting stents (DES) as the standard of care in coronary percutaneous coronary intervention (PCI), including in acute coronary syndrome (ACS). This is based on comparisons with bare-metal stents (BMS). However, non-drug-eluting titanium-nitride-oxide-coated stents (TiNOS) have not been taken into account. The objective of this study is to determine whether TiNOS can be used as an alternative to DES in ACS. (2) Methods: A prospective systematic literature review (SLR), conducted according to the PRISMA guidelines, was performed, wherein multiple literature databases from 2018 and 2022 were searched. Prospective, randomised, controlled trials comparing outcomes after PCI with TiNOS vs. DES in any coronary artery disease (CAD) were searched. Clinical outcomes were meta-analytic pooled risk ratios (RR) of device-oriented Major Adverse Cardiac Events (MACE) and their components. The analysis stratified outcomes reported with ACS-only vs. ACS jointly with chronic coronary syndrome (CCS). (3) Results: Five RCTs were eligible, comprising 1855 patients with TiNOS vs. 1363 with DES at a 1-year follow-up. Three enrolled patients presented with ACS only and two with ACS or CCS. The latter accounted for most of the patients. The one-year pooled RRs in those three RCTs were as follows: MACE 0.93 [0.72, 1.20], recurrent myocardial infarction (MI) 0.48 [0.31, 0.73], cardiac death (CD) 0.66 [0.33, 1.31], clinically driven target lesion revascularization (TLR) 1.55 [1.10, 2.19], and stent thrombosis (ST) 0.35 [0.20, 0.64]. Those results were robust to a sensitivity analysis. The evidence certainty was high in MACE and moderate or low in the other endpoints. (4) Conclusions: TiNOS are a non-inferior and safe alternative to DES in patients with ACS.

PMID:36551915 | PMC:PMC9775300 | DOI:10.3390/biomedicines10123159

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Coronary Artery Bypass Grafting Following COVID-19 Infection: Difficulties and Challenges

Vie, 12/23/2022 - 11:00

J Nepal Health Res Counc. 2022 Nov 3;20(2):555-557. doi: 10.33314/jnhrc.v20i02.3789.

ABSTRACT

The COVID-19 pandemic has raised challenges and dilemmas to perform cardiac surgery in the patients following COVID-19 infection due to lasting adverse impacts of the disease on the lungs. A 74-years-old patient, recently infected by COVID-19, with previous myocardial infarction and multiple percutaneous coronary interventions, in-stent thrombosis to the left anterior descending artery, and low resting saturation, presented with chest pain and underwent urgent coronary artery bypass grafting. His postoperative period remained challenging due to high oxygen requirements. He had otherwise an uneventful recovery and was discharged on domiciliary oxygen, which was weaned off over three months and he continues to do well at six months of follow-up. Keywords: Cardiac surgery; COVID-19; coronary artery bypass surgery; pandemic.

PMID:36550744 | DOI:10.33314/jnhrc.v20i02.3789

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